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Germanium Wafers For VCSELs

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Umicore develops ultra-low resistivity 8inch n-type germanium wafers

Umicore Electro-Optic Materials (EOM), a supplier of germanium products and materials solutions, has announced the successful development of ultra-low (<1 mOhm.cm) 6 inch and 8 inch Germanium wafers for VCSELs.

According to the company , VCSELs on Umicore 6 inch or 8 inch wafers will have superior electrical performance on top of the already proven better optical performance in comparison with GaAs wafers traditionally used for this application.

Bendix De Meulemeester, director marketing and business development said: “We are seeing growing interest in our Germanium wafers for photonic applications. Thanks to the Umicore material expertise and know-how, our team has been able to develop an innovative germanium crystal technology that achieves below 1mOhm.cm resistivity in n-type Germanium wafers without affecting the excellent crystal quality such as zero-dislocations and high doping uniformity.

"With the development of the first 6” VCSEL Ge wafer in 2020, the first 8” VCSEL Ge wafer in 2021, this is the third innovation of our Germanium R&D team in relatively short time, a testament of our commitment to the photonic industry ”

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